Equation 32 · Part 1 · Every Crystal Has Its Own Speed of Light
Symbol c
What this part means
the standing in for.
Its job in the formula
c is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol c→Article meaning
Where the article explains it
Massless-cone kinematics is the third exact entry, carrying one scope condition: wherever a band is genuinely linear, its low-energy excitations obey the massless wave equation with , or the local Fermi velocity, standing in for c , and every kinematic consequence of that equation, Klein tunneling included, replays inside the window.
The passage around this formula
…is the third exact entry, carrying one scope condition: wherever a band is genuinely linear, its low-energy excitations obey the massless wave equation with , or the local Fermi velocity, standing in for c , and every kinematic consequence of that equation, Klein tunneling included, replays inside the window.
Learn the underlying idea
A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.
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The article lists its research sources here.